Semi-Annual Consolidated Balance Sheet
| Concept | As at 2023-09-30 | As at 2023-03-31 | 
|---|---|---|
| Semi-annual consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                9,931,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,969,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,188,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,080,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -94,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -47,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                35,328,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,251,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                15,558,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,567,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                4,070,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,058,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                5,819,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,869,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                5,668,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,639,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Other | 
                                                101,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                101,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                8,152,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,450,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Other | 
                                                8,245,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,539,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -92,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -88,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                23,812,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,113,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                59,140,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,365,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Notes and accounts payable - trade | 
                                                5,153,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,878,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                5,115,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,491,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                419,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                347,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,229,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,079,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                15,400,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,193,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                7,335,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,863,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit liability | 
                                                35,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,881,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,847,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                10,425,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,897,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                25,825,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for retirement benefits for directors (and other officers) | 
                                                139,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                131,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                708,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                596,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses for directors (and other officers) | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                7,996,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,996,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                12,057,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,057,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                15,083,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,730,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -2,532,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,531,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                32,604,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,252,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                1,002,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                773,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred gains or losses on hedges | 
                                                -35,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | 
                                                -616,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,149,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Remeasurements of defined benefit plans | 
                                                360,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                397,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                33,314,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,274,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                59,140,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,365,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |